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Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1 in /home/esuggi/public_html/getUserFun.php:29 Stack trace: #0 /home/esuggi/public_html/getUserFun.php(29): mysqli_query() #1 /home/esuggi/public_html/ad-details.php(25): getUser_by_id() #2 /home/esuggi/public_html/index.php(15): include('...') #3 {main} thrown in /home/esuggi/public_html/getUserFun.php on line 29